Rand-trimmer shield.



No. 660,829. Patented Dot. 30,1900.

E. E. -ANGELL. RAND TRIMMER SHIELD.

(Lpplicaflion filed Feb. 23, 1599.)

(No Model.)

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W77/c55c5 I @42 f v W NITED STATES ATENT FFICE.

EDWIN E. ANGELL, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO THE AMERICANSHOE MACHINERY COMPANY, OF PORTLAND, MAINE.

RAND-TRIMMER SHIELD.

SPECIFICATION forming part of Letters Patent N 0. 660,829, dated October 30, 1900.

Application filed February 23, 1899. Serial No- 706,666. (No model.)

To all whom it may concern:

Be it known that I, EDWIN E. ANGELL, of Somerville, in the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Rand-Trimmer Shields, of which the following is a specification.

My invention relates to improvements in rand-trimmer shields; and the object is to pro- [0 vide means for providing the proper adjustment of the shield in relation to the randtrimmer and is in the nature of an improvement on the manner of mounting the shield as shown in the Maxwell patent, No. 567,246,

dated September 8, 1896. In said Maxwell patent it will be noticed that the adjustable nut when located in its adjusted position is locked by the set-screw when the work is being operated on and is apt to mar the upper of the boot or shoe, and, further, it may work loose while in operation and injure the shoe or the operator. In my device the set-screw is entirely done away with, because by using two adjustable threaded nuts, one being a 5 screwed against the other, the two are locked in position.

My invention consists of certain novel features hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, which illustrate a construction embodying myinvention, Figure l is a side view of the outer end of the shield and wrenches for inserting the adjustable nuts into the cutter-shield. Fig. 2 is a 3 5 plan view of the outer end of the shield. Fig. 3 is a sectional view through the shield. Figs. 4 and 5 represent, respectively, plan and sectional views of one of the locking-nuts. Figs. 6 and 7 represent, respectively, side and plan 0 views of the other locking-nut. Fig. 8 is a longitudinal sectional view through the cutter-shaft, cutter, cutter-shield, and the locking-nut bushings, with the locking-screw shown in full lines.

5 Like letters of reference refer to like parts throughout the several views.

A represents a rand-trimmer shield which is of substantially similar construction to that shown in the above-mentioned Maxwell patent, but may of course be of any desired concutter-attaching screw-head A, as shown in 5 5- Fig. 8.

To introduce the threaded locking nut bushings D D into the shield, as shown in Fig. 8, the lips F on the wrench E are moved into the slots Gof the bushing D and inserted into the shield and adjusted to the proper position for the lip A tocome properly over the edge of the cutter to prevent the upper being injured by the cutter, and the other locking-nut bushing D is introduced on the opposite side to that into which the nut D was introduced by the fingers F of the wrench E, which enter the slots G of the nut-bushing D, and said nut is screwed up by the wrench E into position against the nut D, when the wrench E is used to lock said nuts against each other. When said nuts are in their proper positions, the attaching-screw H secures said shield in its position to the cutter A", as shown in Fig. 8, with the projection A fitting in the recess A of the shaft A These two adjustable locking-nuts are provided instead of the single-adjustable nut shown in the Maxwell patent, No. 567,246, in which a set-screw is necessary to hold said So nut in its adjusted position, and said screw is apt to loosen in the revolution of the device and injure the upper of theboot or shoe, whereas by providing two locking-nuts they look against one another and hold the shield in its adjusted position with relation to the cutter, and this does away with the set-screw, Which is liable to mar the upper of the shoe. The said recess 0 in the shield is of much larger diameter than the thread B to accomo modate the head A of the cutter-attaching screw H, and this head is also of greater diameter than the opening through the shield, and the object of this construction is to prevent the shield from running off in the event 5 of the locking-nuts not being properly tightened before the starting of the machine, thus preventing the exposure of the cutter, which is apt to injure the operator or the work.

I do not limit myself to the arrangement 10o and construction shown, as the same may be varied Without departing from the spirit of my invention.

Having thus ascertained the nature of my invention and set forth a construction embodying the same, What I claim as new, and desire to secure by Letters Patent of the United States, is

1. In an apparatus of the character specified, a rotary shaft, a cutter, ashield for said cutter, means consisting of threaded nuts adapted to engage the threaded opening in the shield for holding said shield in relation to the cutter, and means for securing said cutter and shield to the shaft.

2. In an apparatus of the character specified, a rotary shaft, a cutter, a shield for said cutter having a threaded opening and a recess of larger diameter than said threaded opening, means consisting of threaded nuts adapted to engage said threaded opening in the shield for holding said shield in relation to the cutter, and an attaching-screw for se curing the cutter and shield to said shaft and having its head located Within said recess.

3. In an apparatus of the class specified, a rotary shaft, a cutter provided with a central opening, a shield for said cutter having an inner screw-threaded opening and a larger outer opening, exteriorly threaded nuts turned into said screw-threaded opening of the shield and forming a bearing of greater diameter than said central opening of the cutter, and an attaching-screw passing through said cutter and said shield into said shaft and having a portion to fit said central opening of the cutter and having an enlarged portion to form a journal to fit the bearing formed by said nuts and having a head to fit said larger outer opening of the shield and to project over the outer of said nuts.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 15th day of February, A. D. 1899.

EDWIN E. ANGELL.

Witnesses:

A. L. MEssER, O. A. STEWART. 

